EP0585745A3 - Direct positive silver halide photographic material and method for forming high contrast positive image using the same - Google Patents

Direct positive silver halide photographic material and method for forming high contrast positive image using the same Download PDF

Info

Publication number
EP0585745A3
EP0585745A3 EP9393113268A EP93113268A EP0585745A3 EP 0585745 A3 EP0585745 A3 EP 0585745A3 EP 9393113268 A EP9393113268 A EP 9393113268A EP 93113268 A EP93113268 A EP 93113268A EP 0585745 A3 EP0585745 A3 EP 0585745A3
Authority
EP
European Patent Office
Prior art keywords
silver halide
same
high contrast
halide photographic
photographic material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP9393113268A
Other versions
EP0585745A2 (en
EP0585745B1 (en
Inventor
Naoki Obi
Kiyoshi Suematsu
Yasuhiko Kojima
Masatoshi Katayama
Yasuo Shigemitsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP4512893A external-priority patent/JP3298209B2/en
Application filed by Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Publication of EP0585745A2 publication Critical patent/EP0585745A2/en
Publication of EP0585745A3 publication Critical patent/EP0585745A3/en
Application granted granted Critical
Publication of EP0585745B1 publication Critical patent/EP0585745B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48515—Direct positive emulsions prefogged
    • G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Pyridine Compounds (AREA)
EP93113268A 1992-08-20 1993-08-19 Direct positive silver halide photographic material and method for forming high contrast positive image using the same Expired - Lifetime EP0585745B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP22140492 1992-08-20
JP221404/92 1992-08-20
JP4512893A JP3298209B2 (en) 1992-03-31 1993-03-05 Silver halide photographic material for direct positive and positive image forming method using the same
JP45128/93 1993-03-05

Publications (3)

Publication Number Publication Date
EP0585745A2 EP0585745A2 (en) 1994-03-09
EP0585745A3 true EP0585745A3 (en) 1994-08-24
EP0585745B1 EP0585745B1 (en) 1999-03-24

Family

ID=26385087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93113268A Expired - Lifetime EP0585745B1 (en) 1992-08-20 1993-08-19 Direct positive silver halide photographic material and method for forming high contrast positive image using the same

Country Status (3)

Country Link
US (1) US5362621A (en)
EP (1) EP0585745B1 (en)
DE (1) DE69324083T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5372911A (en) * 1991-06-13 1994-12-13 Dainippon Ink And Chemicals, Inc. Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor
US5536634A (en) * 1994-09-30 1996-07-16 Eastman Kodak Company Silver halide emulsions spectrally sensitized in the presence of low N-alkyl pyridinium ions
US5589323A (en) * 1996-01-23 1996-12-31 Sun Chemical Corporation Chemically stable ascorbate-based photographic developer and imaging process
DE10257939A1 (en) * 2002-12-12 2004-06-24 Herbert Hafner Photographic developer bath for positive and negative processes contains reducing sugars such as fructose in combination with ascorbic acid as developer chemicals

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB875887A (en) * 1959-01-21 1961-08-23 Ilford Ltd Improvements in or relating to direct positive emulsions
US3938997A (en) * 1975-03-28 1976-02-17 Minnesota Mining And Manufacturing Company Rapid access, air stable, regenerable iron chelate developer solutions
GB2049212A (en) * 1979-04-27 1980-12-17 Fuji Photo Film Co Ltd Direct positive type silver halide photosensitive material
EP0480304A1 (en) * 1990-10-03 1992-04-15 Dainippon Ink And Chemicals, Inc. Silver halide photographic material and image forming process using the same
EP0518352A1 (en) * 1991-06-13 1992-12-16 Dainippon Ink And Chemicals, Inc. Process for forming super high-contrast negative images and silver halide photographic material and developer being used therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647544B2 (en) * 1973-03-27 1981-11-10
US4273862A (en) * 1977-06-11 1981-06-16 Mitsubishi Paper Mills, Ltd. Direct-positive silver halide photographic sensitive materials
JPS585420B2 (en) * 1977-06-11 1983-01-31 三菱製紙株式会社 Direct positive silver halide photographic material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB875887A (en) * 1959-01-21 1961-08-23 Ilford Ltd Improvements in or relating to direct positive emulsions
US3938997A (en) * 1975-03-28 1976-02-17 Minnesota Mining And Manufacturing Company Rapid access, air stable, regenerable iron chelate developer solutions
GB2049212A (en) * 1979-04-27 1980-12-17 Fuji Photo Film Co Ltd Direct positive type silver halide photosensitive material
EP0480304A1 (en) * 1990-10-03 1992-04-15 Dainippon Ink And Chemicals, Inc. Silver halide photographic material and image forming process using the same
EP0518352A1 (en) * 1991-06-13 1992-12-16 Dainippon Ink And Chemicals, Inc. Process for forming super high-contrast negative images and silver halide photographic material and developer being used therefor

Also Published As

Publication number Publication date
EP0585745A2 (en) 1994-03-09
DE69324083D1 (en) 1999-04-29
DE69324083T2 (en) 1999-07-15
US5362621A (en) 1994-11-08
EP0585745B1 (en) 1999-03-24

Similar Documents

Publication Publication Date Title
EP0138200A3 (en) Silver halide photographic material and method for forming high contrast negative image using the same
EP0633501A3 (en) Photosensitive material and image forming method.
EP0332455A3 (en) Photosensitive material and image forming method
EP0330504A3 (en) Photosensitive material and image forming method
EP0504609A3 (en) Processing solution for silver halide color photographic materials and method of processing the materials with use of the processing solution
EP0306019A3 (en) Silver halide photographic material and method for forming an image
EP0476521A3 (en) Silver halide photographic material and method for processing the same
EP0563860A3 (en) Photographic silver halide photosensitive material
EP0578103A3 (en) Silver halide photographic material.
GB2190510B (en) Silver halide photographic material and image-forming method using the same
EP0577138A3 (en) Silver halide photographic material.
AU4013189A (en) Photosensitive material containing silver halide and heat-diffusable colouring matter, and image forming method using the same
EP0426043A3 (en) Silver halide color photographic material and method for forming color image
DE69323400D1 (en) Silver halide color photographic light-sensitive material and color image forming method using the same
EP0713137A3 (en) Silver halide photosensitive material for color filter and method for producing color filter using the same
EP0280252A3 (en) Silver halide photographic material and method for forming super high contrast image therewith
EP0318992A3 (en) Silver halide color photographic material and method for processing the same
EP0324471A3 (en) Silver halide color photographic material and method for producing of color image using the same
EP0583787A3 (en) Silver halide photographic material
EP0585745A3 (en) Direct positive silver halide photographic material and method for forming high contrast positive image using the same
GB9404670D0 (en) High contrast photographic silver halide material
EP0670516A3 (en) Silver halide photographic material and photographic image formation method using the same.
GB9218599D0 (en) Silver halide imaging materials
EP0529526A3 (en) Developing solution for silver halide photographic material and method for processing silver halide photographic material by using the same
EP0677778A3 (en) Silver halide photographic material and process for the preparation of the same.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19941220

17Q First examination report despatched

Effective date: 19971212

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REF Corresponds to:

Ref document number: 69324083

Country of ref document: DE

Date of ref document: 19990429

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020731

Year of fee payment: 10

Ref country code: DE

Payment date: 20020731

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020828

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040302

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030819

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST